Programming

MSP430-assembly language part-2.1-TIMER

Photo of author

By Jackson Taylor

Timer A — high speed blinking using up/down mode

Time  = (65000*2)+1/1.1MHz = 0.118182727

.include "msp430g2x31.inc"
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3|TAIE), &TACTL
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      bic #1,&TACTL
      xor.b #41h, &P1OUT
      reti
ORG     0FFF0h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Timer A — high speed blinking using up mode & CCIFG

.include "msp430g2x31.inc"
org f800h                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_1), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Timer A — high speed blinking using up/down mode & CCIFG

.include "msp430g2x31.inc"
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Next    Arithmetic operations

http://jimmyjosep.blogspot.in/2013/12/msp430-assembly-language-part-3.html

.include "msp430g2x31.inc"
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3|TAIE), &TACTL
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      bic #1,&TACTL
      xor.b #41h, &P1OUT
      reti
ORG     0FFF0h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Timer A — high speed blinking using up mode & CCIFG

.include "msp430g2x31.inc"
org f800h                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_1), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Timer A — high speed blinking using up/down mode & CCIFG

.include "msp430g2x31.inc"
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Next    Arithmetic operations

http://jimmyjosep.blogspot.in/2013/12/msp430-assembly-language-part-3.html

org f800h                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_1), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Timer A — high speed blinking using up/down mode & CCIFG

.include "msp430g2x31.inc"
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Next    Arithmetic operations

http://jimmyjosep.blogspot.in/2013/12/msp430-assembly-language-part-3.html

Hardware Hack

Stop Buying New Batteries for Your Tech

Electronics are expensive, but their power sources don't have to be. Discover the simple engineering trick to recondition dead batteries and bring your gadgets back to 100% capacity.

Watch the Free Video 
org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800

Next    Arithmetic operations

http://jimmyjosep.blogspot.in/2013/12/msp430-assembly-language-part-3.html

org 0xf800                 
      mov #(WDTPW|WDTHOLD), &WDTCTL
      mov #0x280, SP
      mov.b #0x41,&P1DIR
      mov.b #0x41,P1OUT  
      mov #(TASSEL_2|MC_3), &TACTL
      mov #CCIE, &TACCTL0
      mov #65000, &TACCR0
      eint
jimmyloop:
      jmp jimmyloop          
jimmyisr:
      xor.b #41h, &P1OUT
      reti
ORG     0FFF2h                 
DW      jimmyisr
ORG     0FFFEh                 
DW      0xf800
See also
MSP430

SEPIC CONVERTER WITH MPPT

Revive Your Dead Electronics

Got a drawer full of dead gadgets or a failing car battery? Instead of paying a premium for replacements, use this simple trick to easily recondition them right from home.

See How It Works